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Numerical Simulation of Low Velocity Impact Analysis of Fiber Metal Laminates

Balkumar K., Iyer A. V., Ramasubramanian A., Devarajan K., Marimuthu P. K.

Mechanics and Mechanical Engineering

2016

Vol. 20, nr 4

515--530

A Fiber Metal Laminate (FML) consists of a laminate of several thin metal layers bonded with fiber–reinforced layers of composite materials. In this paper, the response of a fiber metal laminate is analysed on the basis of the residual velocity of the impactor. With the help of Design of Experiments (DOE) the data sets are generated and the residual velocity of the impactor was obtained by using Finite Element Analysis (FEA) software ABAQUS/Explicit. The FEA results are compared with experimental results available in the literature. Analysis of Variance (ANOVA) is used to understand the influence of process parameters on the response of FMLs. Results show that impactor geometry and thickness of the FML plate were the significant process parameters related to the response of low velocity impact analysis of FML and fiber configurations were found to be insignificant with regard to low velocity impact analysis performance. Finally the results show that aluminium based Aramid fibers (ARALL) and aluminium based glass fibers (GLARE) have higher impact strength when compared to other kinds of FMLs such as aluminium based carbon fibers (CARALL). Stress distribution in glass epoxy based FMLs are also studied.